Insecticide's and our forests

Various discussions related to Chemical Pesticides, Herbicides, Etc.

Insecticide's and our forests

Postby adminjt » Tue Nov 16, 2010 7:07 pm

Warning Industry Propaganda Below

Tuesday August 31, 2010

Landscape Ontario

Emerald ash borer confirmed outside Ottawa-Gatineau regulated area

The Canadian Food Inspection Agency (CFIA) confirmed, on Aug. 31, the presence of the emerald ash borer (EAB) in the City of Ottawa, outside the current Ottawa - Gatineau regulated area. An adult EAB was retrieved from an insect trap south of Fallowfield Road near Richmond Road.

Movement restrictions on regulated wood materials are placed on the affected property. Further regulatory measures will be considered once survey work is completed for the year.

The emerald ash borer can spread rapidly if moved by people. The key challenge in limiting the spread of this beetle is to prevent people from moving potentially infested ash materials - such as logs, branches, nursery stock, wood chips and firewood of all species - to non-infested areas. The public can play a key part in helping to control the spread of EAB by avoiding actions that would promote its spread.

The CFIA continues to work with federal, provincial and municipal governments towards slowing the spread of the EAB. Additional information is available on the CFIA website at, or by calling 1-866-463-6017.

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Programs needed to monitor DDT in Fundy: scientist

Postby adminjt » Tue Dec 28, 2010 11:14 pm

Saturday May 1st, 2010

The NB Telegraph-Journal

Programs needed to monitor DDT in Fundy: scientist

by Derwin Gowan

ST. ANDREWS - Scientists still find DDT in sea creatures from the Bay of Fundy, scientist Peter G. Wells said in St. Andrews Friday.

Canada and the United States stopped spraying this insecticide to control the spruce budworm forest pest 42 years ago.

However, it still the most common chemical that monitoring programs find in Bay of Fundy/Gulf of Maine mussels, Wells, a toxicologist from Dalhousie University in Halifax, told a workshop on threats to the health of the bay.

The Bay of Fundy Ecosystem Partnership's Working Group on the Cumulative Effects of Stress organized the by-invitation-only workshop for fisheries and aquaculture industries and others interested in the bay.

Canada registered dichlorodiphenyltrichloroethane (DDT) for use as an insecticide in the 1940s.

From 1952 until governments suspended it for this use in 1968, industry and government sprayed about 15 million hectares of eastern North American forest with DDT to control spruce budworm, according to Bill Freedman in the book Environmental Ecology - the Ecological Effects of Pollution, Disturbance and Other Stresses second edition available online at Google Books.

New Brunswick sprayed 5.75 million kilograms of DDT from airplanes during this period, the book states.

Canada phased out most uses of DDT by the mid-1970s, then discontinued its registration in 1985. But those with the insecticide were allowed to sell, use or dispose of remaining stocks until the end of 1990, according to Environment Canada. Selling or using it in Canada is illegal.

Wells, the lead-off speaker at the day-long workshop, stressed the need for monitoring programs for DDT and many other things that do not belong in the Bay of Fundy.

"We need monitoring," he said.

"There are lots of indications that the Bay of Fundy is under stress," he said, citing chemical pollution, increased marine traffic, litter and certain fisheries and seabird species doing better than others.

A survey 10 years ago found tidal barriers, such as causeways, across 25 of 44 rivers draining into the upper Bay of Fundy. Many flats are closed to clamming, Wells said, but he noted the efforts to clean up sewage at Boston, Saint John and elsewhere.

"There is an effort to put in more waste treatment systems around the Gulf," he said. (Marine scientists consider the Bay of Fundy an extension of the Gulf of Maine).

He counted 88 monitoring programs that find everything from chemical pesticides and bacteria to caffeine from people's morning coffee.

These programs show the "linkages" between land and water. Most of them each look for one thing, but not enough at cumulative effects, he said.

Interested parties should meet periodically to make sure they are looking for the right things related to land use and coastal development, the impact of fisheries and aquaculture, climate change and other things, Wells said.

They should also ensure funding for monitoring programs "because a lot of them are hanging on by their pinkies."

DDT is the most common chemical monitoring programs find in Bay of Fundy mussels, scientist Peter G. Wells said Friday. ... le/1035380
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